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.Management Sciences
Category: Electrical Engineering Mcqs
For which of the following equipment current rating is not necessary?
A. Circuit breakers
B. Isolators
C. Load break switch
D. Circuit breakers and load break switches
The diode detector in an AM radio receiver is usually found _____________?
A. Before the first RF stage
B. After the first RF stage
C. After several stages of amplification
D. None of the above
Which of the following devices has the highest input impedance ?
A. JFET
B. MOSFET
C. Crystal diode
D. ordinary transistor
In Rankine cycle the work output from the turbine is given by__________?
A. change of internal energy between inlet and outlet
B. change of enthaply between inlet and outlet
C. change of entropy between inlet and outlet
D. change of temperature between inlet and outlet
If voltage feedback (negative) is applied to an amplifier, its output impedance ______________?
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
In case of the induction motors the torque is___________?
A. inversely proportional to (Vslip)
B. directly proportional to (slip)2
C. inversely proportional to slip
D. directly proportional to slip
Which of the following is not necessarily an advantage of interconnecting various power stations?
A. Improved frequency of power supplied
B. Reduction in total installed capacity
C. Increased reliability
D. Economy in operation of plants
Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?
A. Absolute instruments
B. Indicating instruments
C. Recording instruments
D. Integrating instruments
The use of strain type insulators is made where the conductors are__________?
A. dead ended
B. at intermediate anchor towers
C. any of the above
D. none of the above
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be________________?
A. 60 N
B. 30 N
C. 40 N
D. 15 N
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